Effect of N, P, K, Ca and Mg on Leaf Nutrient Content and Yield of Young Coconut
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2007-02
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The effect of graded doses of nitrogen, phosphorus, potassium, calcium and magnesium on the yield, yield attributes and leaf nutrient concentration of young coconut palms of West coast Tall variety is presented hereunder. Application of all the nutrients except phosphorus increased the concentration of these nutrients in the leaf. However, the effects of nitrogen and potassium were significant only in the initial years. Applied phosphorus had only marginal influences on leaf phosphorus. Higher levels of nitrogen, phosphorus and potassium had no significant influence over the lower levels on the yield and yield attributes. The main effect of magnesium was significant on the yield and yield attributes. The direct and indirect effects of soil and leaf nutrient concentrations on the yield are also discussed.
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Placrosym-VI 1986 p-331-351